Intermittent power-controlling device.



G. W. MOSHER.

INTERMITTENT POWER CONTROLLING DEVICE.

APPLICATION FILED MAR. 18, I915- Patented Jan. 11, 1916.

GEORGE W. MOSHER, 0F NEWPORT, KENTUCKY.

INTERMITTENT rowEE-ooNT oLLING DEVICE.

Specification of Letters latent.

Application filed March 18, 1915. Serial No. 15,213.

To all whom it may concern: 7 1

Be it known that I, GEORGE IV. MOSHER,

a citizen of the United States, and a resident of the city of Newport, in the county of Campbell and Stateof Kentucky, have invented certain new and useful Improvements in Intermittent Power-Controlling Devices, of which the following is a full, clear, and'exact description, reference being had to the accompanying drawings, making part of this specification.

My invention relates to devices for the purpose of actuating intermittently some desired machine, particularly where the timing of intervals is done by clockwork. In devices of this nature, it is necessary to cause the actuating shaft or arbor tobe released by the clockwork which does the timing, and to stop of itself and connect again with the clockwork readyvfor the next release.

It is the object of my inventionsto provide an intermittent power device of this nature,

particularly one adapted to be actuated by a spring or springs, which is strong, certain and secure. g

It is also my object in connection with my power device to provide ameans whereby when some outside stoppage prevents the intermittent device from completing a full revolution or revolutions,this will atonce stop the clockwork, thereby preventing jamming and bending of arbors, pins, clutches and the like. i 1.

These objects I accomplish by that certain new and useful construction and arrangement of parts to be hereinafter more specifically pointedout and claimed.

In the drawings, Figure 1 is a'rear elevation of the device. Fig. 2 is a top plan view thereof. Fig. 3 is a perspective detail of the stopping and releasing mechanism and the clock-stopping mechanism. Fig. 415121..

perspective view of the releasing bar. Fig. 5 is a detail elevation of the clock starter and stopper. 7 I p Mounted between the plates, 1, 1, spaced by the posts 2, 2, is any desired clock-movement having a springS, pallet 4 and balance wheel 5. In the adaptation of myinvention shown in the drawings, the stopping finger, referred to in the introductory matter, and to be hereinafter described, which stops the clockwork when the intermittent mechanism becomes clogged from'without, is-illustrated work. ginning of movement, the bead 18 on this as stopping the pinion 6 of the clock escape I ment train. 7 The pinion 7, on whose arbor is located the minute hand of the watch, is employed to actuate the releasing bar.

The intermittent device has an energizing spring 8, which 'drivesthe pinion and gear train 9, 10, 11 and 12. 'The pinion 12 is Patented J an. 11, 1916.

mounted'on an arbor '13, which is the shaft that is to be intermittently turned. At each side of the pinion is located, on the arbor 13, a cam disk 14 (Figs. 1 and 3) having notches 15 and 16 cut therein. A releasing bar 17, having a bead 18 to engage either notch, is mounted on a rocking arbor 19, by means of a pin 20 on said arbor, over which the bar loosely engages. On this arbor 19 is a finger 21, whi'ch projects over the arbor or shaft 13 in the path of-a cam disk 22 on said shaft, having stops 23 and 24 thereon. The finger is held against the periphery of the disk by a spring 25, on the cross rod or post 2 of the clock frame, which spring presses down on the releasing bar.

Mounted or cut on the disk 22, at the center thereof, is the boss 26, which has adjacent flat and rounded edges, and is so-disposed that the fiat faces lie at an angle of about forty-five degrees to the horizontal, when the shaft or arbor 13 is in locked, position. A laterally extending pin 27 on the releasing bar lies in the path of this boss in such a way as to be struck by its corners, when in releasing position.

As so far described the operation of the device is as follows :'Starting with the parts in locked position at the beginning of a. minute. The gear 7, in mesh with whose teeth lies the end 28 of the bar 17 (curved upwardly so as to mesh below the center of said gear),is slowly rotated by the clock- This raises the bar 17. At'the bebar lies in contact with the apex of the cam surface just aheadof the notch 15 therein, of the disks 14 on the shaft'to bedriven. The raising ofthe bar allows the bead 18.to be'forced into-this notch by the spring 25 bearing on the bar, and this motion at once swings the rocking arbor 19 to release the locking finger from engagement with the tooth 24: on the locking disk, thereby allow ing the shaft 13 to be turned. This rotation is to be counter clockwise. During this operation the spring 25 preserves the contact of thebead 18 with the small cam disks,

the stop 23 come into contact.

and the c am disks rotate and press out wardly' 'Onthe 'beadfbut not downwardly,

which causes the bar to pull over the rock; ing arbor and finger so that the tongue and I This contact brings the bead 18 to the edge of the notches 16 on the small disk and the parts rest there until the continued movement of the gear 7 raises up the bar sufficiently to throw the bead into the notches 16. This will cause another release of parts for another half rotation, and will bring the bar up so,that it lies fairly highon the pin 20, by which it will be remembered it was secured to the rock arbor. Inasmuch as the sides of the notch 16 are abrupt, the rotationof the small cams 14 will throw the bar 17 outward and at the same time downward, the notion being counter clockwise as stated. At the same time the pin 27 will be struck bythe fiat edge of the boss 26, which will further tend to throw the bead out of ,the slot. The spring 25 also pushesdownward and inward, and inasmuch as :the bar is raised off of its seat on the rocker 19, it will be pushed downwardly over the gear 7 so that its end 28 will engage inthe next tooth of the gear. The parts will by then have come toa stop, and, until another partial movement of the gear 7 takes place, .will remain at rest. The tooth Zion the .disk 22 has a sloping back formation as shown, so that the finger 21, the rocker 19, and hence the bar 17 are held over for an instantto allow the abrupt walls of the notch 16 to throw the bar downward along the gear 7 before it moves into mesh with the teeth thereof. The boss 26, having flat and rqund edges, is used for clock stop, whereby if the rotating shaft 13 on which it is mounted is clogged for some reason before it has com pleted a rotation, then the clockwork will be stopped. The position of the flat edges of this boss at the close of each rotation, as accomplished by the regular lock, is at a given angle to the horizontal. A long pin 29, having a hook 30 at its far end is mounted on a post 2 so as to bear because of its own springiness against the boss. The pin is so directioned that its hook lies adjacent to one of the gears 6 of the clock train (Fig. 3), and its location is such that unless the pin is lying along the flat edge of the boss, its hook will be in mesh with the gear, there, by stopping it. Since, then, the exact position of the straight edges of the boss at close of regular rotation is known, the pin can be readily adjusted so as to lie flat along such edges at that position of them'only.

'The starter and stopper for the clock movement (Fig. 5, and omitted from Fig. 2) is applied to the balance wheel 5 of the movement. Journaled in the side plate 1 of the clock is an arbor 31', having a knurled head 32. On the inner end is mounted a bent pin 33, which extends along the side plate and theninw'ardlywhere it is provided with a finger 34 adapted to contact with the periphery of the balance wheel-5 in certain 7 positions.

A small knob 35 on the side plate forms a surface over which the pin must be forced to be turned by the arbor 31.

This knob also throws the pin closer to the balance wheel. I, When the pin is turned so that its finger lies in contact with one of the balance wheel teeth, the movement is stopped, and when it is turned it rises on the knob 35 and snaps over it, giving a sud-- den frictional twirl to the balance wheel, therebycausing it to start.

Having thus described my invention, what I;claim as Inewand desire to secure by Lett P t n is 1. In a ,device of the character specified, a rotating shaft, means for rotating the same, a clockwork, means for locking the shaft against rotation, means actuated by said clockwork for releasing the shaft, and means actuated by the shaft for engaging the clockwork except when the shaft is in locked-position.-;

2. In a device of the character specified, a, rotating shaft, means for rotating the same, a clockwork, means for locking the shaft against rotation, means actuated by said clockwork for releasing the shaft, means for engaging the clockwork to stop the same, and means on the shaft for holding saidmeans in stopping position except when the shaft is in locked position.

3. In a device of the character specified, a rotating shaft, means for rotating the same, a clockwork, means for locking the shaft against rotation, means actuated by said vclockwork for releasing the shaft, a

spring finger for engaging the clockwork to stop the same, and means on the shaft for holding sa1d spring finger 111 stopping position except when the shaft is in locked position.

4. In a device of the character described, in combination with a gear of a time-piece movement, a rotating shaft, means to rotate the same, locking means for said shaft, and means for releasing said means actuated by the teeth of said, gear, and means on said rotating shaft for returning the releasing means ready to be actuated anew by the gear. 7

5. Means for intermittently .locking and releasing a rotating shaft, comprising alock on said shaft, and a latch therefor, a releasing bar to shift the latch, a continuously driven clock gear in mesh with the bar, a stop for said bar over which it is to be lifted by the gear, and means whereby said bar will swing out said latch when raised over said stop, and means for returning the bar to the next tooth of said rotating gear.

6. In a device of the character described,

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in combination with a slow moving clock work gear, means controlled by that gear for releasing an intermittent mechanism twice for each tooth during a revolution, comprising an arbor to be released, a double lock thereon, a bar with one end engaging a tooth of the gear, a latch for the lock controlled by the bar, a member on the arbor to be released having two notches, a lug on the bar to snap into said notches, whereby a raising of the bar will throw in the notches and this movement opens the latch, and means on said member for throwing down the bar once every revolution of the arbor to engage another gear tooth.

7. In a device of the character described, in combination with a slow moving clockwork gear, means controlled by that gear for releasing an intermittent mechanism twice for each tooth during a revolution, comprising an arbor to be released, a double lock thereon, a bar with one end engaging a tooth of the gear, a latch for the lock controlled by the bar, a member on the arbor to be released having two notches, a lug on the bar to snap into said notches, whereby at raising of the bar will throw in the notches and this movement opens the latch, one of said notches having straight walls to throw said bar downwardly once every revolution of the arbor to engage another gear tooth.

8. In a device of the character described, in combination with a slow moving clockwork gear, means controlled by that gear for releasing an intermittent mechanism twice for each tooth during a revolution, comprising an arbor to be released, a double lock thereon, a bar with one end engaging a tooth of the gear, a latch for the lock controlled by the bar, a member on the arbor to be released having two notches, a lug on the bar to snap into said notches, whereby a raising of the bar will throw in the notches and this movement opens the latch, one of said notches having straight walls to throw said bar downwardly once every revolution of the arbor to engage another gear tooth, and means on the bar for engaging the ar- Copies of this patent may be bor at another point to throw the bar out of the notch as it is being depressed.

9. In a device of the character described, in combination with a slow moving clockwork gear, means controlled by that gear for releasing an intermittent mechanism twice for each tooth during a revolution, comprising an arbor to be released, a double lock thereon, a bar with one end engaging a tooth of the gear, a latch for the lock controlled by the bar, a member on the arbor to be released having two notches, a lug on the bar to snap into said notches, whereby a raising of the bar will throw in the notches and this movement opens the latch, one of said notches having straight walls to throw said bar downwardly once every revolution of the arbor to engage another gear tooth, and means for holding the bar from returning to the same tooth owing to being outwardly thrown by the downwardly throwing means. 7

10. In a device of the character described, in combination with a slow moving cloc work gear, means controlled by that gear for releasing an intermittent mechanism twice for each tooth during a revolution, comprising an arbor to be released, a double lock thereon, a bar with one end engaging a tooth of the gear, a latch for the lock controlled by the bar, a member on the arbor to be released having two notches, a lug on the bar to snap into said notches, whereby a raising of the bar will throw in the notches and this movement opens the latch, one of said notches having straight walls to throw said bar downwardly once every revolution of the arbor to engage another gear tooth, and means on the bar for engaging the arbor at another point to throw the bar out of the notch as it is being depressed, and means for holding the bar from returning to the same tooth owing to being outwardly thrown by the downwardly throwing means.

. GEORGE WV, MOSHER.

Attest:

MILT BEALE, KATHERINE SMITH.

Washington, D. G. 

